Logic Puzzles with Answers for Kids. HOUSE for a SECOND

We hope you want to give your brain a hearty workout. Then solve this logic puzzle with answer for kids — HOUSE for a SECOND. If you encounter any difficulties, then ask your dad for help. Your dad is competent in matters of construction, so you can solve this puzzle (and other ones) with him on Father`s Day, for example. And you`ll benefit both from getting knowledge in house building and from having a lot of pleasure spending time together.

If one worker can build a house for 12 days, then 12 workers will build it for 1 day. Therefore 288 workers will build a house for an hour; 17,280 workers will build it for one minute. And 1,036,800 workers can build a house for a second. Is this true? If it isn`t, then where`s the mistake?

Comments (2)

Answer:

The resoning is false. Saying that more workers can build a house much faster is possible when the whole days are meant, i.e if the work time is measured in days. If the work time is measured in hours, and even more — in minutes and seconds, then this regularity (the more workers — the faster work) can`t be applied. The mistake of the reasoning is that different notions denoting varied time intervals are mixed. The notion «day» is almost imperceptibly substituted by the notions «hour», «minute», «second» thereby creating visibility of the accuracy of this reasoning.